Visual Description Of The Effect Of Wind Power Integration On Network Power Flow

Our country is rich of wind resources, recently, the technology of wind power integration matures daily, and is widely used as a type of power generation. Due to the wind power resources are intermittent, volatility and uncertainty characteristics, in order to ensure the safe and stable when the system is online, it is necessary to deeply research the influence to power system energy distribution that caused by wind power integration. The essence of the problem is to study the characteristics of a single generator’s power distributes in power grid. This paper, based on the theory of network power distribution, establishes the power flow that any single source’s power injection supplies all the loads through the network (especially called power supply path), and according to this research, put forward a new type of the adjacency matrix, which is used to describe the very power flow’s belonging relations, and then get the analytic description of the power supply path, providing theoretical reference for the research of wind power integration.After wind power integrated, the electrical parameters of all parts of the network will be affected by the change of wind power output. Scientific computing visualization technology is a powerful method to describe the change directly. When concerning a single power flow interface, we can establish wind power’s supply path, and according to the power numerical value along the path, describ the change visually. When concerning couple of power flow interfaces, we can describe the process of the change of wind power supply. Because of the influence to electrical parameters caused by wind power integration in all parts of the grid is different, similar influence area division has important engineering significance. The paper put forward a method that describe the influence of wind power supply to the power flow in power system, put the node whose degree of that the wind power integration affected are the same or similar together into a two-dimensional diagram, describing the influence to the power distribution caused by wind power integration visually and directly. And supply a visual technical support for the power production and power scheduling department.